[upd] github-actions: Bump actions/cache from 5.0.5 to 6.0.0 (#6316)

Bumps [actions/cache](https://github.com/actions/cache) from 5.0.5 to 6.0.0.
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](27d5ce7f10...2c8a9bd745)

---
updated-dependencies:
- dependency-name: actions/cache
  dependency-version: 6.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/container.yml

@@ -84,7 +84,7 @@ jobs:
           fetch-depth: "0"
 
       - name: Setup cache Python
-        uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae  # v5.0.5
+        uses: actions/cache@2c8a9bd7457de244a408f35966fab2fb45fda9c8  # v6.0.0
         with:
           key: "python-${{ env.PYTHON_VERSION }}-${{ runner.arch }}-${{ hashFiles('./requirements*.txt') }}"
           restore-keys: |
@@ -96,7 +96,7 @@ jobs:
         run: echo "date=$(date +'%Y%m%d')" >>$GITHUB_OUTPUT
 
       - name: Setup cache container
-        uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae  # v5.0.5
+        uses: actions/cache@2c8a9bd7457de244a408f35966fab2fb45fda9c8  # v6.0.0
         with:
           key: "container-${{ matrix.arch }}-${{ steps.date.outputs.date }}-${{ hashFiles('./requirements*.txt') }}"
           restore-keys: |